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https://www.readbyqxmd.com/read/28918134/crystallization-and-demineralization-phenomena-in-washed-rind-cheese
#1
Gil F Tansman, Paul S Kindstedt, John M Hughes
This report documents an observational study of a high-moisture washed-rind cheese. Three batches of cheese were sampled on a weekly basis for 6 wk and again at wk 10. Center, under-rind, rind, and smear samples were tested for pH, moisture, and selected mineral elements. Powder x-ray diffractometry and petrographic microscopy were applied to identify and image the crystal phases. The pH of the rind increased by over 2 pH units by wk 10. The pH of the under-rind increased but remained below the rind pH, whereas the center pH decreased for most of aging and only began to rise after wk 5...
September 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28917809/characterization-of-sodium-tripolyphosphate-and-sodium-citrate-dehydrate-residues-on-surfaces
#2
M Sadi Gurses, Can Erkey, Seda Kizilel, Alper Uzun
Sodium tripolyphosphate (STPP) and sodium citrate dihydrate (sodium citrate) are the most widely used components in detergent formulations. Here, we characterized these two components on glass surfaces to assess their possible exposures from white spots on dishwasher-washed dishes. Ultraviolet/visible near infrared spectroscopy (UV/Vis-NIR), Fourier transform infrared spectroscopy (FTIR) in the attenuated total reflectance mode (ATR-FTIR), Raman spectroscopy and laser ablation-inductively coupled plasma mass spectroscopy (LA-ICP-MS) were utilized to design calibration models for a range of STPP and sodium citrate concentrations 1-8% w/w) precipitated on glass surfaces...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917736/off-line-microextraction-by-packed-sorbent-combined-with-on-solid-support-derivatization-and-gc-ms-application-for-the-analysis-of-five-pyrethroid-metabolites-in-urine-samples
#3
Anna Klimowska, Bartosz Wielgomas
A novel, fast and eco-friendly analytical method using microextraction by packed sorbent coupled to large volume injection-gas chromatography-mass spectrometry (MEPS-LVI-GC-MS) was developed for the determination of five pyrethroid metabolites (cis-2,2-dimethyl-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-cyclopropanecarboxylic acid, cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylic acids, cis-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid and 3-phenoxybenzoic acid) in human urine...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917315/protective-and-risk-factors-associated-with-the-presence-of-toxocara-spp-eggs-in-dog-hair
#4
Yslla Fernanda Fitz Balo Merigueti, Vamilton Alvares Santarém, Lívia Magosso Ramires, Aline da Silveira Batista, Layron Vinícus da Costa Beserra, Amábyle Lopes Nuci, Talita Mirella de Paula Esposte
Toxocariasis is one of the most prevalent parasitic zoonoses in the world. The disease is principally caused by the nematode Toxocara canis, whose definitive host is the dog. The transmission of toxocariasis to humans is mainly caused by accidental ingestion of embryonated eggs of the parasite, present in the soil. Studies have shown that dog hair has the capacity to harbor eggs of the parasite and represents a risk for transmission of the zoonosis. The objective of the present study was to evaluate the frequency and factors associated with the contamination of dog hair by Toxocara spp...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28915940/accurate-and-reliable-quantification-of-the-protein-surface-coverage-on-protein-functionalized-nanoparticles
#5
Siyao Liu, Jeannie Horak, Markus Höldrich, Michael Lämmerhofer
The ability to accurately quantify the protein coverage on nanoparticles is critical for assessing the quality of the surface chemistry and the success of the functionalization process of protein-nanoparticle conjugates. Surface coverage determination is therefore an integral part in the quality control of protein-modified nanoparticles in industrial nanotechnology. In this work, a novel and conventional method was established for direct quantification of the protein surface coverage on metallic nanoparticles...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915482/nickel-nanoparticles-encapsulated-in-porous-carbon-and-carbon-nanotube-hybrids-from-bimetallic-metal-organic-frameworks-for-highly-efficient-adsorption-of-dyes
#6
Lina Jin, Xiaoshuang Zhao, Xinye Qian, Mingdong Dong
Nickel nanoparticles encapsulated in porous carbon/carbon nanotube hybrids (Ni/PC-CNT) were successfully prepared by a facile carbonization process using Ni/Zn-MOF as the precursor. Distinct from previous studies, Ni/Zn-MOF precursors were prepared via a direct precipitation method at room temperature for only 5min. After the carbonization, magnetic Ni nanoparticles were well embedded in the porous carbon and carbon nanotube. The obtained Ni/PC-CNT composites had a high surface area (999m(2) g(-1)), large pore volume (0...
September 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28915342/transplantation-of-solid-organ-recipients-shedding-epstein-barr-virus-dna-pretransplant-a-prospective-study
#7
Priya S Verghese, David O Schmeling, Emma A Filtz, Jennifer M Grimm, Arthur J Matas, Henry H Balfour
Epstein-Barr virus (EBV) poses a significant threat to patient and graft survival posttransplant. We hypothesized that recipients who shed EBV at transplant had less immunologic control of the virus and hence were more likely to have active EBV infection and disease posttransplant. To test this hypothesis, we conducted a 5-year prospective study in primary solid organ transplant recipients. We measured EBV DNA in oral washes and blood samples by quantitative PCR before transplant and periodically thereafter for up to 4 years...
September 15, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28914471/wash-overexpression-enhances-cancer-stem-cell-properties-and-correlates-with-poor-prognosis-of-esophageal-carcinoma
#8
Lan Huang, Jingyao Lian, Xinfeng Chen, Guohui Qin, Yujia Zheng, Yi Zhang
There is increasing evidence that cytoskeleton remodeling is involved in cancer progression. Wiskott-Aldrich syndrome Protein (WASP) family represents a key regulator of actin cytoskeleton remodeling. However, the underlying mechanism of WASP family in cancer progression remains elusive. Here, we studied the role of WASP and SCAR Homolog (WASH), a recently identified WASP family member, in human esophageal squamous cell carcinoma (ESCC). Using three human ESCC cell lines, we found that WASH expression was significantly elevated in cancer stem-like cells enriched by sphere formation assay...
September 15, 2017: Cancer Science
https://www.readbyqxmd.com/read/28914356/in-vivo-treatment-with-nitazoxanide-induces-anaerobic-metabolism-in-experimental-intraperitoneal-cysticercosis
#9
Joelma M Nasareth, Carolina M Fraga, Nayana F Lima, Guaraciara A Picanço, Tatiane L Costa, Ruy S Lino-Junior, Marina Clare Vinaud
Taenia crassiceps cysticerci are used as experimental model to study the host-parasite relationship and treatment of cysticercosis. One of the described mode of actions of nitazoxanide (NTZ) is to block the pyruvate ferredoxine oxidoreductase (PFOR) enzyme which is an essential enzyme to the parasite metabolism. The aim of this study was to determine the in vivo influence of one dosage of NTZ on the energetic metabolism of T. crassiceps cysticerci. Thirty days after the intraperitoneal inoculation of T. crassiceps cysticerci, BALB/c mice were orally treated with 7...
September 15, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28913873/improvement-of-decellularization-efficiency-of-porcine-aorta-using-dimethyl-sulfoxide-as-a-penetration-enhancer
#10
Selcan Guler, Halil M Aydin, Lan-Xin Lü, Ying Yang
Decellularization of tissues and organs enables researchers to obtain extracellular matrix (ECM) with the natural conformation and chemical composition of specific tissues. However, drawbacks exist such as the structural alteration of ECM or loss of some important components in ECM due to overexposure to chemicals during the decellularization process. In this study, porcine aorta was decellularized by sodium dodecyl sulfate (SDS). Dimethyl sulfoxide (DMSO) was used as a penetration enhancer in the decellularization process to enhance the penetration of SDS, consequently reducing the exposure time of SDS to treated tissues...
September 15, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28913736/ptfe-coated-non-stick-cookware-and-toxicity-concerns-a-perspective
#11
Muhammad Sajid, Muhammad Ilyas
PTFE is used as an inner coating material in non-stick cookware. This unique polymer coating prevents food from sticking in the pans during the cooking process. Such cookware is also easy to wash. At normal cooking temperatures, PTFE-coated cookware releases various gases and chemicals that present mild to severe toxicity. Only few studies describe the toxicity of PTFE but without solid conclusions. The toxicity and fate of ingested PTFE coatings are also not understood. Moreover, the emerging, persistent, and well-known toxic environmental pollutant PFOA is also used in the synthesis of PTFA...
September 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28913596/-perioperative-management-of-immunosuppressive-treatment-in-patients-undergoing-joint-surgery
#12
K Krüger
The perioperative management of patients on immunosuppressive drugs is uncertain due to a lack of controlled studies. Continuation of medication without a pause may increase the risk of postoperative infections and wound healing disorders and when the pause is too long this can induce a flare of the underlying rheumatic disease. Additional factors, such as rheumatic disease activity, comorbidities, previous infections and the type of surgical procedure also modulate the risk. The highest risk of infection is associated with corticosteroids depending on the dose, so that a dosage as low as possible but stable in the perioperative period is recommended...
September 14, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28912965/medically-important-parasites-carried-by-cockroaches-in-melong-subdivision-littoral-cameroon
#13
R J Atiokeng Tatang, H G Tsila, J Wabo Poné
Cockroaches have been recognized as mechanical vectors of pathogens that can infest humans or animals. A total of 844 adult cockroaches (436 males and 408 females) were caught. In the laboratory, cockroaches were first washed in saturated salt solution to remove ectoparasites and then rinsed with 70% alcohol, dried, and dissected for endoparasites. An overall transport rate of 47.39% was recorded. Six genera of parasites were identified. These were Ascaris (33.76%), Trichuris (11.97%), Capillaria (6.16%), Toxocara (4...
2017: Journal of Parasitology Research
https://www.readbyqxmd.com/read/28912578/tumour-acidosis-from-the-passenger-to-the-driver-s-seat
#14
REVIEW
Cyril Corbet, Olivier Feron
The high metabolic demand of cancer cells leads to an accumulation of H(+) ions in the tumour microenvironment. The disorganized tumour vasculature prevents an efficient wash-out of H(+) ions released into the extracellular medium but also favours the development of tumour hypoxic regions associated with a shift towards glycolytic metabolism. Under hypoxia, the final balance of glycolysis, including breakdown of generated ATP, is the production of lactate and a stoichiometric amount of H(+) ions. Another major source of H(+) ions results from hydration of CO2 produced in the more oxidative tumour areas...
September 15, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28912505/biomimetic-silica-nanoparticles-prepared-by-a-combination-of-solid-phase-imprinting-and-ostwald-ripening
#15
Elena Piletska, Heersh Yawer, Francesco Canfarotta, Ewa Moczko, Katarzyna Smolinska-Kempisty, Stanislav S Piletsky, Antonio Guerreiro, Michael J Whitcombe, Sergey A Piletsky
Herein we describe the preparation of molecularly imprinted silica nanoparticles by Ostwald ripening in the presence of molecular templates immobilised on glass beads (the solid-phase). To achieve this, a seed material (12 nm diameter silica nanoparticles) was incubated in phosphate buffer in the presence of the solid-phase. Phosphate ions act as a catalyst in the ripening process which is driven by differences in surface energy between particles of different size, leading to the preferential growth of larger particles...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912099/antimicrobial-peptides-are-degraded-by-the-cytosolic-proteases-of-human-erythrocytes
#16
Charles G Starr, William C Wimley
Well-studied and promising antimicrobial peptides (AMPs), with potent bactericidal activity, in vitro, have yet to have a significant impact in human medicine beyond topical applications. We previously showed that interactions of AMPs with concentrated human erythrocytes inhibit many of them, and suggested that screens and assays should be done in their presence to mimic host cell inhibition. Here, we use AMPs to characterize the activity of proteases that are associated with human erythrocytes. The representative AMPs, ARVA and indolicidin, are degraded significantly during incubation with dilute, washed erythrocytes and yield a variety of degradation products, suggesting significant exopeptidase activity...
September 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28911749/effect-of-participatory-women-s-groups-and-counselling-through-home-visits-on-children-s-linear-growth-in-rural-eastern-india-caring-trial-a-cluster-randomised-controlled-trial
#17
Nirmala Nair, Prasanta Tripathy, H S Sachdev, Hemanta Pradhan, Sanghita Bhattacharyya, Rajkumar Gope, Sumitra Gagrai, Shibanand Rath, Suchitra Rath, Rajesh Sinha, Swati Sarbani Roy, Suhas Shewale, Vijay Singh, Aradhana Srivastava, Anthony Costello, Andrew Copas, Jolene Skordis-Worrall, Hassan Haghparast-Bidgoli, Naomi Saville, Audrey Prost
BACKGROUND: Around 30% of the world's stunted children live in India. The Government of India has proposed a new cadre of community-based workers to improve nutrition in 200 districts. We aimed to find out the effect of such a worker carrying out home visits and participatory group meetings on children's linear growth. METHODS: We did a cluster-randomised controlled trial in two adjoining districts of Jharkhand and Odisha, India. 120 clusters (around 1000 people each) were randomly allocated to intervention or control using a lottery...
October 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28905449/lull-pgm-system-a-suitable-technique-to-improve-the-regenerative-potential-of-autologous-fat-grafting
#18
Paolo G Morselli, Federico A Giorgini, Claudia Pazzini, Claudio Muscari
Autologous fat grafting and methods of purification of harvested tissue have become one of the most current themes in regenerative medicine. The aim of this study was to evaluate the in vitro regenerative potential of abdomen lipoaspirates subjected to a combined washing-decantation purifying procedure, the Lull pgm System (Lull). Blood cells and stromal-vascular fraction (SVF) cells contained in the aspirates were investigated and compared with those obtained through more conventional fat-processing methods, i...
September 14, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28904802/analytical-study-of-226-ra-activity-concentration-in-market-consuming-foodstuffs-of-ramsar-iran
#19
M Gooniband Shooshtari, M R Deevband, M R Kardan, N Fathabadi, A A Salehi, K Naddafi, M Yunesian, R Nabizadeh Nodehi, M Karimi, S S Hosseini
BACKGROUND: Ramsar, a city of Iran located on the coast of the Caspian Sea, has been considered to be enormously important due to its high natural radioactivity levels. People living in High Level Natural Radiation Areas (HLNRAs) have been exposed by several sources, one of which could be foodstuff. However, many studies have been carried out to measure the environmental radioactivity in Ramsar, but no survey has been conducted in all stapled consumed foods yet. This study was dedicated to determine (226)Ra activity concentration in the daily diets of Ramsar residents as a probable exposure...
2017: Journal of Environmental Health Science & Engineering
https://www.readbyqxmd.com/read/28903743/a-socio-ecological-analysis-of-barriers-to-the-adoption-sustainablity-and-consistent-use-of-sanitation-facilities-in-rural-ethiopia
#20
Fikralem Alemu, Abera Kumie, Girmay Medhin, Teshome Gebre, Phoebe Godfrey
BACKGROUND: Despite evidence showing that access to and use of improved sanitation is associated with healthier households and communities, barriers influencing the adoption and sustainablity of sanitation facilities remain unclear. We conducted a qualitative case study to explore barriers influencing the adoption, sustainablity and consistent use of sanitation facilities in rural Ethiopia. METHODS: A qualitative study was conducted in the rural district of Becho, in central Ethiopia, from June to August 2016...
September 13, 2017: BMC Public Health
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